Hi, it could be flushing of logs (access.log) on disk which happens more often when server load is higher. you could use iostat or dstat to see what happens
Regards, Andrey > De: "Ghiurea, Isabella" <[email protected]> > À: [email protected] > Envoyé: Mercredi 5 Septembre 2018 23:14:24 > Objet: [389-users] ldap perfomance > Hello Gurus, > looking for an answer to the following performance behavior > my env: 389-ds-base-1.3.5.15-1.fc24.x86_64 in multimaster fractional > replication > running rsearch for 5 min with 1 thread seeing spikes for a basic read using > index uid > And running with 10 threads same search the avg ms/ops performance are much > better with no major spike/burst > Any explanation much appreciate it > see bellow for 1 thread and the spike/burst > T 300 -t 1 > rsearch: 1 threads launched. > T1 min= 0ms, max= 5ms, count = 54710 > T1 min= 0ms, max= 42ms, count = 64930 > T1 min= 0ms, max= 2ms, count = 65174 > T1 min= 0ms, max= 2ms, count = 65110 > T1 min= 0ms, max= 44ms, count = 64966 > T1 min= 0ms, max= 1ms, count = 65101 > T1 min= 0ms, max= 22ms, count = 65056 > T1 min= 0ms, max= 32ms, count = 64981 > T1 min= 0ms, max= 1ms, count = 65145 > T1 min= 0ms, max= 1ms, count = 65223 > T1 min= 0ms, max= 27ms, count = 65015 > T1 min= 0ms, max= 1ms, count = 65182 > T1 min= 0ms, max= 3ms, count = 65213 > T1 min= 0ms, max= 23ms, count = 64760 > T1 min= 0ms, max= 2ms, count = 64214 > T1 min= 0ms, max= 3ms, count = 52279 > T1 min= 0ms, max= 11ms, count = 64914 > T1 min= 0ms, max= 1ms, count = 65118 > T1 min= 0ms, max= 5ms, count = 64852 > T1 min= 0ms, max= 91ms, count = 64180 > T1 min= 0ms, max= 4ms, count = 64746 > T1 min= 0ms, max= 1ms, count = 65080 > T1 min= 0ms, max= 12ms, count = 65110 > T1 min= 0ms, max= 702ms, count = 59243 > T1 min= 0ms, max= 1ms, count = 65082 > T1 min= 0ms, max= 89ms, count = 64331 > T1 min= 0ms, max= 23ms, count = 64647 > T1 min= 0ms, max= 5ms, count = 64818 > T1 min= 0ms, max= 55ms, count = 64374 > T1 min= 0ms, max= 8ms, count = 64713 > T1 min= 0ms, max= 8ms, count = 64713 > 300 sec >= 300 > Final Average rate: 6394.22/sec = 0.1564msec/op, total: 64713 > And final avg rate for 10 threads, no significant spike/burst for this num of > threads > 20180905 14:07:23 - Rate: 16962.10/thr (16962.10/sec = 0.0590ms/op), > total:169621 (10 thr) > 300 sec >= 300 > Final Average rate: 17420.40/sec = 0.0574msec/op, total:169621 > _______________________________________________ > 389-users mailing list -- [email protected] > To unsubscribe send an email to [email protected] > Fedora Code of Conduct: https://getfedora.org/code-of-conduct.html > List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines > List Archives: > https://lists.fedoraproject.org/archives/list/[email protected]
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